There's absolutely zero reason in anything that the James Webb has seen or anything else to doubt the basic Big Bang model of the universe expanding from an initial hot, dense state. Forming a galaxy is kind of a mess. It is exactly the kind of complex system, gastrophysically intimidating problem that we poor human beings are not very good at solving. So if you find data that is not an immediate fit to your current best theory of galaxy formation, you don't throw out the Big Bang. You throw out your current best theories of galaxy formation.