Do you own the means of production and employ people to operate it, paying them a fraction of the value their labor produces?
Are you able to live comfortably without working for the foreseeable future? Do you exert outsized control over municipal, regional and state government far beyond your “vote” if you live in a place that claims to be a democracy? Does that control come from your power over the means of production that you control?
Supporting a society controlled by the people described above does not make you a capitalist, being one of the people described above does.