I loved Heinlein, but he's not very PC/Woke and it's probably quite dated now. Also very few people in the UK were into it, compared to America. My friends dad introduced both of us, he had stacks of sci fi from second hand shops. He was also the first person I knew who had an IBM compatible PC, as he wanted to "be an author".
Definitely not PC/woke by today's standards. But by the standards of the time, his writing was routinely considered to be scandalous, especially his latter works. It helps, as with everything, to put things into context.
Although, even I, fanatic that I am, would have a really hard time trying to explain his Sixth Column.
But I'd like to imagine that he would have continued to become more socially progressive over the years, and would probably be loudly advocating for even more progressive ideals today, if he were alive today.
