This from someone willfully ignoring these people pay their share of property and fuel.taxes that pay for all this, in many cases much more tax than people complaining
If they literally take up more space than everyone else, then they're not paying their fair share unless we charge them more for parking.
It doesn't matter how much you pay for other things. Smokers and drinkers pay more tax on a relative scale, they don't get to take up more space on an airplane unless they buy another seat.