Because the vast majority of them are not charities. They operate in a FOR Profit model and meddle in political stuff.
Dems in office, we have a prayer section to pray for our leadership and have a freedom candle that is lit every day while they are in office.
Republican in office, no need to pray for our leadership and the candle is gone.
First of all, I am at Church to learn about our Lord and Savior, not to be lecture on how Dems are the devil. (By the Way, Jesus would be a democrat and all church going people should align with democrats social policies as they are Jesus like)
Second, everyone should give money not to their church, but to the people in their community directly. Fund you church's food pantry, if you have one. Small fund for the staff and paster, maybe. Small fund for building upkeep. That is it. All other money should go to benefit those in need. Unfortunately, that is not how they operate.