Schiff doesn't appear aware of past historical precedents where tax revenues increased off of tax cuts.
I'll admit I may not watch this video, but I'll comment here anyway. Schiff is an overrated figure who, if I recall correctly, is a gold & silver permabull--and I am skeptical of his motives there. The permabull metals crowd always makes me cringe, because they've been saying the same thing over and over for many years now and meanwhile the market for precious metals has flatlined. Most people who aren't wealthy don't need metals to hedge against inflation, and since 2011 or so, gold & silver are lousy investments. You would have done MUCH better investing in bitcoin.
I won't argue that Schiff is a successful investor and must know something about markets, but his position on metals seems to be extremely irrational. Hydrogen's quote above doesn't surprise me in the least, because Schiff seems like a man who's a bit blinded by some things. The fact is that people like him have been squawking about how bad the economy is and how much debt the US has, and how worthless fiat is--and yet we have yet to crash, and the economy as of 2018 is much, much better than it has been since 2008.
Could the USD crash and send the economy spinning on its head? Yes. But I've been hearing this for years now and have come to believe that's it's a marketing ploy designed to sell metals to suckers who like to be scared. Schiff and those folks play on that fear.
The economy based on fiat currencies can and eventually will collapse, or fiat could depreciate a lot in value. However, Schiff and Maloney's views are extremely exaggerated and as you said, are perma-bulls that do not care about market cycles at all.
If gold goes up, he'll continue to tell you to buy. If gold goes down, he'll continue to tell you to buy.
And how does he profit from all this? He owns a PM dealer site, just like Maloney, and selling more PM by injecting fear obviously means better sales for himself.
That doesn't mean that silver is a bad bet, in fact, I think it is a good one to make right now. But it's not foolproof or failsafe. Same thing goes with the economy, it has issues, but there are no signs that it's going down as fast as these people claim.