The content of this post I can empathize with its entirety.

My nephew is a former Congressional candidate for the State of Pennsylvania for the Libertarian Party. His politics and mine are at odds. Due to this we no longer engage on Facebook^TM. Our situation was very similar to you and your sisters'.

Myself? I no longer respond to much political discourse anymore; whether the discussion is on social media, or in person. My emotional and mental health as well as relationships are too important to me to allow politics to cause me a breakdown in any of these areas.

I have very strong political views although they do evolve with time and circumstances. By no means am I a pundit in the area of political science. Yet; I have traversed this world and have had many first person experiences that give me my personal political beliefs whether it be domestic or foreign affairs.

Ain't nobody paying me for my political views (with the exception of an upvote on a politcal topic here on STEEM). Therefore; I will keep my political activity consigned to voting. Maybe then I will stay out of trouble !