Well it has something to do with election cycles cause Republicans will block this every way they can. So the only way for it to even have a shot is for Democrats to take both the House and Senate with a 2/3 majority to be able to make a constitutional amendments. I sincerely doubt that would happen. After that it would take a very long political slog to ratification. Which again, I don’t have high hopes for it to get through the States.
Election cycles are how people get elected, so it has a lot to do with election cycle leaning very heavily towards the Democrats for it to not be DOA. Then it has a long uphill battle to get it ratified by the states. To say that it has a slim chance of going anywhere is really overstating the chances of it happening.