Re: 1 BTC = 1 BTC. You only lose if you sell. You're buying inflationary fiat.
Somehow people never say that 1 BTC = 1 BTC when it's the bull market and everyone is fixated on its USD price, but when there's a bear market, we should all forget about USD price 
You are right. On bull market people also start partying because the price looks great, forgetting that they are on profit only if they sell; and most may only sell when the price actually goes down.
Sure, Bitcoin will recover and reach new highs, but it doesn't mean that crashes like this one don't matter at all.
Of course they matter, but imho telling that 1 BTC = 1 BTC often enough may help on newbies' morale. Understanding that 1 BTC = 1 BTC and the price should eventually get back (at least) to the levels they've bought at might help some to avoid buying high and selling low (and if that's achieved, they can easily become long term holders).
At least this is how I see the things.