Just to be sure, subsidy actually means a "direct payment". So do you mean subsidies, or tax incentives, or other form of grants? Not sure how it works where you are. And isn't there much more of that going on with the direct payments made to farmers, which are not really old guys driving around on tractors farmers, but actually rather giant corporations these days, not to deflect the issue entirely. The swamp is indeed large.
Anyway, we generally don't mind baying for benefits derived from flying, having a roof over our heads, pizza night, or a few beers at the bar, so let's just say that a solar subsidy, if they exist, is similar in that we pay for benefits we have been receiving from the Earth for the last few million years while we conveniently let the collection hat pass us by. Just like maintenance costs of a power plant, they cant be ignored and will eventually catch up with us.
Fraud is an issue for the state attorney general. We won't solve that problem here.