Does it really matter how they are propping up the financial...

Does it really matter how they are propping up the financial markets?They've been doing it for decades, I've heard of total global financial collapses for decades but they always manage to avert it. So my reckoning is they'll keep doing for many more decades to come. If you check youtube there are so many so-called reputable financial commentators who have been saying it's going to collapse on this date or that date but it hasn't happened to any of their time-frames. In the mean time keep trading and make money.