I can think of a good reason many would not want to vote Republican. Assuming DJT assumes the role of the GOP candidate - a vote for Donald Trump is a vote to split up the United States faster. Though I personally am all for this country splitting up - many are not. I would politely advise to think of the longer term consequences of your vote.
If unlike me, you don't want this country split up, don't vote GOP - especially if DJT is the candidate. After January 6th, 2021, I no longer believe the United States has the social cohesion required - not even the basic minimum amount - to remain intact over the long haul. That day was a wakeup call to me. I don't claim to read the future - but the required social cohesion for the United States to remain intact no longer exists. Personally, I don't find this to be such a bad thing - but the lack of social cohesion begs, literally begs, for a period of intense turmoil. This I don't look forward to and I place the blame exactly where it belongs - with the GOP and the upper level of elites.
Regardless, I am 57 years old. I believe I will live to see this country split up. This faith, along with my husband and religious beliefs I hold - are what keep me going these days. That and the fact that I am banking cash from my job, which is going quite well thus far. And I'm getting too verbose.
The main point? After 01/06/2021 I'd rethink any vote for the GOP - unless like me you wish this country to split apart. This choice is yours as an adult. Choose well as per your future wishes for this country, whatever they may be - even if they are a 180 from mine. Rob