I want to stress this portion of the OP
Remember James wrote that failing to do the right thing is a sin. So, is voting the right thing? Is not voting a sin? I’ll let you make the final decision on that.
I think I’ve made a pretty good case for voting. I believe it is our civic duty, as well as our God-given privilege, to cast our vote in the election. (It is a sin not to vote), However, with that said, remember that God loves you. He loves you whether or not you vote. He won’t love you more if you vote. And, He won’t love you less if you do not vote.