There has been a recent (at least, in the news) fight on the left over abortion and if you have to be pro-choice to be part of the Democratic party. One side says you absolutely have to be, the other says that anti-abortion voices have to be included in order to win House seats and state legislations in Conservative states/districts, in order to then push pro-choice positions.
I find both sides have compelling arguments, unfortunately. I guess it’s the old “does the end justify the means” argument.