There may be a tipping point eventually but these are all things that have been said for decades too. There were robust youth soccer programs when I was a kid, schools that refused to have (American) football programs, millions of immigrants from Latin America and African countries.
One of my good friends is heavily invested in youth athletics and he says it’s strange how that youth participation doesn’t scale up to an adult interest in soccer. I think it makes sense if you don’t love the sport, although as Gar notes the MLS is picking up some popularity, particularly in cities with none or one major sport. And the Argentina-Iceland game pulled in about 3 million viewers which isn’t terrible (maybe Messi should play every game) but overall US ratings are down considerably from past years, likely due to the time zones and lack of US team.
It is a funny conundrum. The people in the US who are interested in professional or national soccer are happy to follow other countries’ programs and are a bit embarrassed to root for hte US program. The rah rah USA crowd who might really get excited about the US program will never be interested in soccer.
The thing that could really plant the soccer flag in the US for good is if they win it all in 2026, or at least make the semifinals, AND have one or two very charismatic stars. (Another problem is we love our stars here and US soccer players have always been interchangeable stuffed shirts as exciting as oatmeal). I would say this is not likely to happen though.