I don't necessarily think this is the case, at least the US. It's time consuming and expensive to get testing done without an actual diagnosis, even with healthcare. Taking the time off or spending the money on allergy testing just isn't going to take command of the budget over necessities or more serious healthcare needs.

You're right about the rest of it though, but IMO the systemic issues with money in politics prevents anything from being done about it at the moment, and I don't know what it would take to push the working class into a general strike or revolt.