Well, a lot of us are.
However, the definition of capitalism is "
an economic system characterized by private or corporate ownership of capital goods, by investments that are determined by private decision, and by prices, production, and the distribution of goods that are determined mainly by competition in a free market" For example,
Trump's proposal to turn a lot of public roads, bridges, and tunnels over to private ownership, so they'll be repaired "for free", is a capitalistic idea. It's not realistic, but it
is capitalism. By contrast, his recently kicked around idea of having the US negotiate down drug prices isn't really capitalism, since it is
obstructing a free market.
What capitalism isn't, is "make as much money for yourself as you can by taking it from other people, going bankrupt and reneging on debts more times than you yourself can count, refusing to pay people you are contractually obligated, and taking millions as CEO before the company collapses, costing everyone their job". That's not capitalism. That's just greed mixed with incompetence.