Some of the partisan issues are not silly if you are affected by it. To pick a left issue, if you are gay and would like to marry your partner and get the benefits of such legal recognition, the differences are very consequential. To pick a right issue, if you think that Democrats are voting illegally by the millions, then addressing such threats to Democracy is incredibly important.
There are many other issues where there is a real difference. As an affluent, well educated, older white guy with job security, I'm well insulated from many of the issues. But I have empathy for the people who can't be so aloof; to say "both sides are equally bad" across the board is lazy enlightened centrism.