The difference is that Black people back then despite all the hardships and being shut out politically, were better negotiators with the patience to understand what was reasonable in asking for policies and things that could be beneficial in Black communities and overall Black people's lives.
The Civil Rights Act of 64, the Voting Rights Act of 65, the Fair Housing Act, Affirmative Action, etc were all reasonable accommodations, and let the truth be told, there were many things among those bills that didn't make the final cut, but Black people back then were willing to make compromises and sacrifices to get those proposals passed or else it would be shelved. The problem nowadays is that some of you have an ego, a rather bigger-than-thou perspective, where you don't know how to reasonably negotiate and make the proper compromises to get things done or at least be heard and taken seriously.
See it's like that person who meets with a hiring manager for a position or an employee who meets with their bosses to discuss their needs, and that person arrives with a list of unrealistic or unreasonable demands thinking that it's going to be one way cause they think there's no way they'd be turned down believing the hiring manager/bosses need them badly. Come to find out, you didn't see it coming, and it went another way; they shook your hand and told you they'd keep in touch or were straightforward with a smirk, thanked you for the time, and made it clear they were going a different direction.
If these disgruntled and unsatisfied Black men approached the Democrats with reasonable and realistic wants and needs then I guarantee they'd be more inclined to give these wants some consideration or at least take your voice seriously rather than approaching politicians demanding the biggest and most grandiose package with an unreasonable and unrealistic “all or nothing” approach is just going leave you in the dark while not being taken seriously. Black women aren't getting everything they want from Dems either, but politicians are more inclined to hear them out because most of them understand what type of needs and wants are reasonable, realistic, and likely to be implemented with minor sacrifices; they know how to negotiate at the table.
I'm not saying Black men don't know how to negotiate, politically speaking. However, too many seem to want it to be one way, but in reality, it's the other way.