Specifically, MULTINATIONAL corporations (iow, Demonkkkrat allies).
Corporations themselves aren't the problem. There are many good corporations out there. The problem is multinational corporations (such as Delta Airlines, Coca Cola, Twitter, Google, Facebook, etc). They do not like capitalism because under capitalism they do not have control over financial outcomes. Capitalism breeds competition, and they do not like nor want any competition. They do not want a free market; they want a controlled market where they are in control. They pay off their allies in government (both Democrats and Republicans alike) to do their bidding.
Multinationals are proponents of communism, globalism, and Wall Street [think "ruling class" and Gates/Rockefeller/etc]. They are enemies of capitalism, nationalism, and Main Street [think "working class" and other people like you and I].