It's also worth noting that tariffs and currency wars are how we triggered the Great Depression.
That is clearly an enormous oversimplification. I would caution against use of words like "triggered" that imply a single cause for complicated matters like these.
Yep, it's also worth noting that the currency war happened during the 1930s, not in 1929. The US stock market bubble bursting was the trigger, the other stuff was all responses, responses that made things worse maybe, but still responses to things already being fucked.
You don't ditch the gold standard because everything is going fine. It's like if you got gangrene in your leg and you eventually decided that it's time to saw your leg off. You wouldn't say that sawing your leg off what the "trigger" for all your problems.
In the 1930s, global demand plummeted, and
then Britain abandoned the gold standard so that they could devalue their currency and increase exports. The tariffs were then by other nations in response to what they saw as some countries "dumping" artificially cheap products in their territories. The root cause wasn't currency valuation or tariffs, it was that global demand crashed following 1929.