It's what drives engagement & wins votes.
One side views abortion as a moral sin. The other thinks that access to healthcare is a value and have a moral obligation to fight for the rights of women.
There are a bunch of issues like that.
For me right now my LGBTQ community is being used by Republicans as an election issue. An example where one side thinks (or pretends to in order to win votes) that it's some political issue, while I and many others feel like it's a direct attack on our lives akin to racism & racist jim crow era laws.