I'd like to see that overwhelming evidence. Everything I've been able to find suggests that renewables, since they have a ~zero marginal energy cost, displace the most expensive dispatchable alternatives. But wholesale pricing seems to be heavily influenced more by the highest priced energy source in the mix than the lowest, so at this point the wholesale price drop is modest (but still a drop). Retail pricing has to include all sorts of extra stuff, like paying for the local grid infrastructure, subsidies, etc, and this makes what the consumer sees on their bill have only a passing relationship to the wholesale cost.

If you have a good source for something that says otherwise, I'd be genuinely interested to see it. Not that I would probably change my opinion on renewables, since I personally think cutting pollution of the air I breathe is worth paying a little extra for, but I like to be informed nonetheless.