I've noticed that. But through my experience I've also come to expect this kind of phenomenon.
In my opinion the term "progressive" is somewhat fluid. You can easily narrow it down to few bullet points you agree with and therefore can call yourself as progressive. The problem is that the process is completely subjective. I worked for the social democratic party for years in my country, and I've met a lot of people who call themselves social democrats - but nevertheless I've heard some crazy shit over the years. For example there was an elderly man who's been in the party for decades and calls himself a social democrat and a progressive, but once defended Hitler, like the real Hitler who "had good ideas" and "was on the same side with us". He still considers himself aligned with the party, because the party supports the issues that are dear to him and he supports the party by definition. All the nay-sayers on other issues are just misinformed in his mind. (And before you ask, we would kick him out if we could. But, legal issues and such)
But the point is we all have an idea what being "progressive" is, and it doesn't align with anybody else's idea 100% ever. You do find people who are 80% and over aligned with your ideas, but that really is a minority. Of course, for most issues you can find majority support, but those supporters are not always the same.
This thread is not about easy issues, it's about issues which demand people to do some introspection. In political discourse you can come to the same policy conclusion through different paths and foundations. You can make an argument for single payer health care from an economic standpoint or human rights standpoint as an example. But when dealing with the foundations of your arguments themselves, the water gets muddy - these are deeply held personal beliefs people structure the world they perceive around. If you think women are different from men in fundamental ways, you construct part of your worldview around that, but you can still come to same conclusions about single womens rights policy issues as those who don't hold the same fundamental view. This leads to our ultimate problem - we are not really ready to accept we could be wrong on this level.
And yes, I don't really care for the toxic masculinity that has been on display many times here. There is no "both sides", it's one's own construction.