The repeal the 19th meme is funny but now I'm not sure that is as much of a problem.
The property requirement meant that only those with skin in the game were the ones who got to decide who governed. Without it we have paupers and indolents with the power to spend money that they did not earn or pay.
That inevitably leads to the death spiral from the famous quote:
A democracy cannot exist as a permanent form of government. It can only exist until the voters discover that they can vote themselves largesse from the public treasury. From that moment on, the majority always votes for the candidates promising the most benefits from the public treasury with the result that a democracy always collapses over loose fiscal policy, always followed by a dictatorship.
Obviously no political movement can form based on this principle since our current "conservatives" are too spineless to even fight for voter ID requirements. But at least it is within the overton window allowing for public discussion.
Assuming vote counters aren't actively stealing elections, a democracy is a direct reflection of the people comprising it. The proportion of those people who are productive, responsible, and moral determines the health of the democracy.
In the case of America, our population was simultaneously replaced and corrupted by mass immigration and Cultural Marxism, respectively. All of this kicked off during the 1960s, when Hart-Cellar lit the fuse on our demographic demise and radical leftists took over academia, news media, and entertainment. Now every yearly "class" of immigrants represents a substantial net voter gain for anti-American interests, and every new generation of native born citizens is increasingly indoctrinated to despise and destroy their own country.
In short: we didn't gatekeep our borders or our critical institutions, so now we're locked in a democracy with people who are using their votes to burn down the country - and their numbers have surpassed critical mass.
Theoretically, the constitution should protect us from these people. What we've seen over the last several decades is that they don't care what the constitution says. They're going to do whatever they can with whatever power they manage to secure. The only thing the constitution really does is tell us when to start shooting.
McCarthy was right, change my mind.
I could try, but it would take fifty years of dedicated propaganda in schools and mass media, and I still wouldn't be able to guarantee success.