They were never able to do that.
It's not that they've become weaker, they were always like that.
They want convenience, no hassle, many want minimal childcare responsibilities, unchallenged polygynous behaviour (even if it's "just" porn, strip clubs, flirtations, emotional affairs, work wives, SM eye candy browsing/subscribing) ... and a certain level of dominance/deference. It's not getting those that's the issue.
They got those in a traditional society. They had minimal childcare responsibilities, minimal to no domestic work, they were unlikely to be left for polygynous activities (if the wife even found out, they're much more likely to find out about cheating and things approaching cheating now, due to technology), and they were deferred to/dominant. They were the head of the household.
They didn't want equality and juggling and they didn't have to put up with it.
Likewise women haven't gotten stronger, as such; they are in a stronger position. They have opportunities they did not have.