Complex sentence: However, studies show that the majority of gender-variant males had trouble identifying or relating to their fathers, thus they are more likely to be attached to their mothers and this of course means, in touch with their feminine side.
Split into simpler sentences: However, studies show that the majority of gender-variant males had trouble identifying with or relating to their fathers. Thus, they are more likely to be closer to their mothers, and by extension, more in touch with their feminine side.