I know there were rebellions during Labour's time in power but to - day they seem more united in opposition or at least we don't hear about internal differences. (ukpollingreport.co.uk)
Seemingly, despite progress made against discrimination / prejudice against external differences (colour / race / gender), it is still perfectly acceptable in some places to discriminate against internal differences (beliefs / ideology / worldview / sexual orientation etc.) and to do so with such vehemence as to rival some of those historical examples you cited. (nakedpastor.com)
Horgan believes that, while carefully avoiding confrontation, internal differences of opinion can be taken advantage of. (totalpolitics.com)