.. the batch of hooch I'm fermenting at the moment
And not a second too soon.
I too fancy the idea of becoming a bit self-reliant. How joyous, for instance, to bake bread that resulted from your own starter. Or harvest a crop of home grown tomatoes, even if they sprouted spontaneously from the compost heap.
But I draw the line at writing my own novels to read. 
Whether the withdrawal of brewer's yeast will matter much remains to be seen. I get conflicting reports on whether one can brew up significant alcohol with baker's yeast. Some say you can, some say you can't. I'll learn from experience soon enough, because the yeast I am using is baker's yeast.
But it won't matter anyway, because the web is overflowing with instructions on how to work up your own yeast starters. Yeast floats around in the atmosphere, and the government cannot prohibit atmospheric circulation.
On YouTube I saw a video from a guy who makes his own ginger beer from scratch, using, instead of commercial yeast, a "ginger bug" which he makes from ginger. Basically he just uses the natural yeasts found on ginger. It is not clear whether these are alcohol-resistant enough to work well for brewing relatively high-alcohol beer. But if you use his methods and use grapes instead of ginger, you ought to get good yeasts; after all, grape yeast is what they use to make wine.
Basically he just chops up his ginger, adds sugar and a bit of water and leaves it until it bubbles, after which he adds a bit more sugar and so on, for a few days. He ends up with a bubbly goo; add it to sugar water, and it ferments it like crazy. Now do the same with grapes, and you'll probably have a good alcohol resistant yeast mix. In fact, I suspect that if you even just drop a few grapes into sugar water, you'll end up with alcohol. Perhaps next thing they'll ban grapes. But of course, all you really need to do is save some of your brew before fermentation ends, because there will be plenty yeast in there for the next batch.
The real magic ingredient is sugar; without it, it becomes quite a mission to brew alcohol. So perhaps that'll be on their target list next, or they'll slap a massive tax on it (higher than what is already on it) to discourage purchase. At which point people will make yet another new plan. It's easy enough to malt your own grain, for example.
In short: good luck trying to ban something which people have known how to make at home for thousands of years.