Using communion to force your political agenda on people is a divisive act.  Telling people that it is mortal sin to vote for a specific politician, especially when they are doing so for reasons of conscience, is a divisive act.  I chose to vote for Hillary Clinton because of the alt-right.  I couldn't vote for someone who chooses to normalize hatred.  I really don't appreciate pro-life people telling me I am headed to Hell because of a decision that I made in good conscience.