Complex sentence: The native Irish, for example, while subject to the British crown, were overwhelmingly opposed to the Anglican and dissenting churches, and almost all remained Roman Catholic, suffering the same penalties as recusants in Great Britain, albeit exacerbated by various ethnic and other issues.
Split into simpler sentences: The native Irish, for example, while subject to the English crown, were overwhelmingly opposed to the Anglican and dissenting churches, and almost all remained Catholic. The Catholics of Ireland suffered the same penalties as recusants in England, albeit exacerbated by various ethnic and other issues.