They need to keep the sexism. They have gone to too much trouble to properly train their women. Many enjoy being sexually objectified. A boss sleeping with his secretary is winked at. A woman being a slut when she is young isn't held against her. For a horny guy, Brazil is like winning the lottery. Prostitutes are for the lazy there. Any guy with a good job and a bouquet of flowers can pick up an eager chick at the checkout lane at the supermarket or get a waitress to go without even bothering to remove his wedding ring.
And how would any of this improve with sexism??? I don't follow your logic. Unless you think that what you describe is a good thing. I wonder if your Brazilian wife agrees.
And much of what you are saying is just stereotypical.
Do notice that Brazil did elect a female president (although she was incompetent and got impeached) much before the United States.
This idea that the Brazilian woman is subservient and easy, is just a stereotype. Would you like it if people referred to your wife this way, just because she is Brazilian?
Bolsonaro saying that women need to be paid less for the same work because they risk getting pregnant is really preposterous.
I don't support him for that.
But I do support him for saying that crime is out of control and the good citizens are unprotected.
I applaud him for 27 years in Congress without being accused of corruption (except for a bit of nepotism for one of his wives, but he did fire her when it became illegal), a rare thing for a Brazilian politician.
I favor his view (which he has only adopted more recently) that the over-bloated Brazilian government needs to scale back its interference in the economy, and that the benefits system needs reform (or else the Brazilian economy will continue to be sabotaged). I favor the idea that privatizing the bloated state companies will decrease graft.
But I do see women as equal to men, and I think all human races are equal, and homosexuals have all the right in the world to make their choices regarding who they want to marry (although I'm definitely heterosexual myself and wouldn't make those choices).
Ultimately, though, like you said earlier, these extreme views will have a lesser impact on Brazilian society (evolution in social mores can't be stopped, it always happens, in all societies, sooner or later) as compared to the corruption and impunity and dictatorship of the left that the Workers Party would implement (or rather, restart).