Let's see, gasoline costs 3 times as much, eggs cost double, bread is almost double.
At a rough 3% CPI index, it'd take 24 years for consumer prices to double. If that's the sort of time frame you're referring to, and your wages have risen only 25%, then yeah - you're getting screwed - but we already knew that.
shouldn't that be going after the upper class instead of the middle class?
There's certainly a good argument for that, yeah. Many feel upper-class incomes should be reducing, while lower & middle incomes should increase - but you'd still expect lower-class incomes to increase more than your own. It's notable that concerns about minimum-wage increases often come from slightly higher incomes who are afraid of ending up on minimum wage themselves as a result, even if their own wage doesn't decrease.
That said, there's a lot of evidence behind your views, so you're not alone, but perhaps minimum-wage earners aren't the ones deserving of complaints.