I don't know how to answer if it's "well thought out". It certainly consistent with his mission of enabling conservatives to use the law to enforce morality, as exemplified in section IV,

"""I turn now to the ground on which the Court squarely rests its holding: the contention that there is no rational basis for the law here under attack. This proposition is so out of accord with our jurisprudence--indeed, with the jurisprudence of any society we know--that it requires little discussion.

The Texas statute undeniably seeks to further the belief of its citizens that certain forms of sexual behavior are "immoral and unacceptable," Bowers, supra, at 196--the same interest furthered by criminal laws against fornication, bigamy, adultery, adult incest, bestiality, and obscenity. Bowers held that this was a legitimate state interest. The Court today reaches the opposite conclusion. The Texas statute, it says, "furthers no legitimate state interest which can justify its intrusion into the personal and private life of the individual," ante, at 18 (emphasis addded). The Court embraces instead JUSTICE STEVENS' declaration in his Bowers dissent, that "the fact that the governing majority in a State has traditionally viewed a particular practice as immoral is not a sufficient reason for upholding a law prohibiting the practice," ante, at 17. This effectively decrees the end of all morals legislation. If, as the Court asserts, the promotion of majoritarian sexual morality is not even a legitimate state interest, none of the above-mentioned laws can survive rational-basis review.""" [0]

I'd say it's fairly hateful to compare consensual homosexual sex to bestiality (which cannot be consensual and thus is always rape).

He also spends a lot of time freaking out about the idea that if the Court forbids states from criminalizing homosexuality, it would logically follow that homosexuals are just people and would also be entitled to marriage equality. And he makes it clear how much he is afraid and repulsed by the idea of homosexuals getting the right to marriage equality.

"""Let me be clear that I have nothing against homosexuals, or any other group, promoting their agenda through normal democratic means. Social perceptions of sexual and other morality change over time, and every group has the right to persuade its fellow citizens that its view of such matters is the best. That homosexuals have achieved some success in that enterprise is attested to by the fact that Texas is one of the few remaining States that criminalize private, consensual homosexual acts. But persuading one's fellow citizens is one thing, and imposing one's views in absence of democratic majority will is something else. I would no more require a State to criminalize homosexual acts--or, for that matter, display any moral disapprobation of them--than I would forbid it to do so. What Texas has chosen to do is well within the range of traditional democratic action, and its hand should not be stayed through the invention of a brand-new "constitutional right" by a Court that is impatient of democratic change. It is indeed true that "later generations can see that laws once thought necessary and proper in fact serve only to oppress," ante, at 18; and when that happens, later generations can repeal those laws. But it is the premise of our system that those judgments are to be made by the people, and not imposed by a governing caste that knows best.

One of the benefits of leaving regulation of this matter to the people rather than to the courts is that the people, unlike judges, need not carry things to their logical conclusion. The people may feel that their disapprobation of homosexual conduct is strong enough to disallow homosexual marriage, but not strong enough to criminalize private homosexual acts--and may legislate accordingly. The Court today pretends that it possesses a similar freedom of action, so that that we need not fear judicial imposition of homosexual marriage, as has recently occurred in Canada (in a decision that the Canadian Government has chosen not to appeal). See Halpern v. Toronto, 2003 WL 34950 (Ontario Ct.App.); Cohen, Dozens in Canada Follow Gay Couple's Lead, Washington Post, June 12, 2003, p. A25. At the end of its opinion--after having laid waste the foundations of our rational-basis jurisprudence--the Court says that the present case "does not involve whether the government must give formal recognition to any relationship that homosexual persons seek to enter." Ante, at 17. Do not believe it. More illuminating than this bald, unreasoned disclaimer is the progression of thought displayed by an earlier passage in the Court's opinion, which notes the constitutional protections afforded to "personal decisions relating to marriage, procreation, contraception, family relationships, child rearing, and education," and then declares that "[p]ersons in a homosexual relationship may seek autonomy for these purposes, just as heterosexual persons do." Ante, at 13 (emphasis added). Today's opinion dismantles the structure of constitutional law that has permitted a distinction to be made between heterosexual and homosexual unions, insofar as formal recognition in marriage is concerned. If moral disapprobation of homosexual conduct is "no legitimate state interest" for purposes of proscribing that conduct, ante, at 18; and if, as the Court coos (casting aside all pretense of neutrality), "[w]hen sexuality finds overt expression in intimate conduct with another person, the conduct can be but one element in a personal bond that is more enduring," ante, at 6; what justification could there possibly be for denying the benefits of marriage to homosexual couples exercising "[t]he liberty protected by the Constitution," ibid.? Surely not the encouragement of procreation, since the sterile and the elderly are allowed to marry. This case "does not involve" the issue of homosexual marriage only if one entertains the belief that principle and logic have nothing to do with the decisions of this Court. Many will hope that, as the Court comfortingly assures us, this is so.""" [1]

[0] https://supreme.justia.com/cases/federal/us/539/558/#599

[1] https://supreme.justia.com/cases/federal/us/539/558/#604