Not really as ERA is about government policy and "ladies night" is about a private business trying to make more money.
They are also public accommodations. I understand that you are a hard libertarian who doesn't believe in prohibiting public accommodations from discriminating, but that's the law in US with respect to race for example, so why not this?
Unequal treatment under the law is not the reason bars offer a ladies night.
It's not the reason why they do it, but our society's tolerance of unequal treatment under the law is the reason why they are allowed to get away with it.
Political Correctness and Social Justice are not the reason bars offer a ladies night.
Again, it's the reason they are able to get away with such blatantly discriminatory behavior even though it would not be tolerated if women were charged more.
Yes, women want the best. So do men. And in the current year the system has some breakdowns occuring. It is still a fact that she goes there to receive advances and he goes there to make advances.
You are ignoring my point of the imbalance in how society treats men and women. When biological inequalities benefit men, laws are passed to 'fix' biologically imposed inequality - for example requiring men to pay child support. But the reverse is not the case. This has led to the present situation where society favors women by simple fact that any advantage men have is addressed by law, while advantages women have are treated as "the way things should be".
That brings up prostitution, which is a related but not synonmous topic. In that case, because present need is so bad, she is trading what she has of value in exchange for immediate short term benefit instead of the long term benefit. Overall though the "nonsensical bar mating dance" is over more than just the short term. If you want to meet people, you have to go where the people are. There are many studies I can pull up about where people meet their life partners, including places like school, bars, work (even today if you can imagine it), social clubs, etc. What they all have in common is that they did more than just stew about how unfair everything is.
It's easy for women when the unfairness is in their favor!
Basically you are saying that men should just shut up about unfairness and live with it because somehow it's right for women to have the advantage in the mating game. I reject that entire premise!
I'd rather live alone than buy (literally!) into this sexist system.
Especially since many women will enter long term relationship with a man they see as a good and stable provider, but then fuck around with the guys they are really sexually attracted to, confident that the divorce laws give them the advantage if the poor guy should ever find out he was cheated on.
It is unfair to men that women give sex to get love and men give love to get sex? It is unfair that in order to get what you want you have to give something of what you have?
It's unfair for the system to expect men to pay for the mere opportunity to meet women, especially when those women ignore most of these men.
It's not a fair exchange - the deck is stacked because the laws only act to one-sidedly help women.
There are many women who go out on dates with men (who are expected to pay for the whole thing!) just for free meals with no interest in the man himself.
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This is no longer giving something to get something you want. It's outright fraud, defended by feminists because it's only men who are harmed.