You seem to have a misunderstanding of crypto, as well as inflation.
Crypto volatility exists because the small market cap (relative to other currencies) combined with questionable legislation that causes it to potentially be very risky to hold. As time goes - these problems are nonissues
Inflation and deflation both have pros and cons; by stabilizing currency, it really hurts you on the international level. For example: Greece. They had economic hardship but were tied to the euro, so they both cannot print money to pay off debt as well as force deflation. Why is deflation good? With deflation foreign investment increases. Goods become relatively cheaper on the global scale - as the same number of x foreign currency can get you more buying power in domestic currency, which drives visitation based incomes, such as vacation hotspots. Because of this, deflation can act as a vital stabilizing force in weaker economies, bringing in additional jobs and productivity as a country has hardship. The issues arise if the deflation is serious enough to warrant people not wanting to spend money, which this slows down the the economy, leading to rising unemployment and thus a shift into stagflation, as the feedback cycle can make it so even with stimulative fiscal policy you’re still behind - and now inflation is happening with overall low productivity
Crypto has no care for computer architecture, as any coin that’s not dogshit is moving away from proof of work based systems, so mining is no longer tied to computing power (both good for the health of the system; interest on your money through proof of stake - as well as the environment; using less computational power for the same function.