The Costa Rica Game:
The MLS will improve over the next 10 to 20 years, but the players in the MLS that have talent must rethink their priorities and move to International play if our USMNT is going to improve and compete.
I agree that in the short term the best solution is for Americans to play overseas but I point out there are barriers to having that happen. First, there's the fact that Europeans are skeptical of our players and are unlikely to give them the benefit of the doubt in trying out....breaking into that system is hard unless like Pulisic you've got some connections or have played there as a youth. Second, there's the language barrier. Third, there's the immigration barrier....in part because the US is tough on Europeans immigrating to the United States and working here the EU reciprocates. Pulisic holds dual citizenship with Croatia (wonder if he regrets not playing for Croatia now?) and so was able to avoid that trap, but otherwise a European team would have to use it's very limited exceptions to bring on an American and they've just been reluctant to do that unless they need someone in particular (like a goalkeeper) or that player is something truly outstanding and a proven value. Fourth, there's the tax barrier...the US treats income earned overseas as being earned here which (depending on the treaty with a country) can lead to double taxation as it will be taxed both by the country being played in and by the US (at a minimum, it requires hiring a tax lawyer to navigate). Fifth, some European leagues have local national quotas (formal and informal) which means again a slot to an American would be precious and not easily given away. So in some ways this is easier said than done. Long term (I agree the short term is a lost cause) our biggest hope is reforming the MLS.
Two minor quibbles with your post: I don't think Howard would count as MLS given his extensive experience both playing overseas and with the US National Team (I'd have marked him mixed, or should have been disqualified for other reasons such as his age and that his style of play is no longer current)...also AYSO United plays within the various leagues and while they couldn't play DA theoretically they can play gold.