What is stopping funding more publicly funded research right now? It isn't the existence of billionaires in spite of the innumerate rhetoric ad nauseam otherwis

What is stopping funding more publicly funded research right now? It isn't the existence of billionaires in spite of the innumerate rhetoric ad nauseam otherwise. There isn't any "doing instead". There being billionaires or not has absolutely nothing to do with the question of why they aren't allocating "doing it instead". That is putting aside that the public and private sector fund research differently with different priorities which results in both discoveries one would make that the other wouldn't and in flaws and anti-patterns observed. Private funding would be more likely to have arbitrary favoritism based on personal biases vs the public sector playing politics in a "lets play pin the jobs on the congressional districts" way.