I can give you many, many examples of posts where the response to discussion of Trump’s liberal last actions, words and asscociations was “I don’t care”.
They made a conscious decision to ignore that past. That is their right. Why is it condescending to say they did it?
(Many Trump supporters would insert a “snowflake” or “feline” reference here, I will not)
“I don’t care” may not mean what you think it means.