Zimbabweans would probably take issue with you over the "finite" supply of fiat currency. Plenty of other economies have at various times attempted to print their way out of trouble too.
As for the hundreds (thousands?) of crypto currencies, only a handful are likely to bleed any money away from the the bitcoin market. Most of them are unlikely to amount to anything serious (except perhaps in some local communities).
Of course, a superior crypto could conceivably take over from bitcoin. Alternatively, overlaying technology might be applied to bitcoin wallets that overcomes the relatively slow speed of bitcoin transactions as well as the transaction volume limit with its consequent high fees.
Incidentally, some time ago, I created a currency called "PSI" on the ripple network. If you establish me as a "trusted gateway" I can let you have some.

(You need at least 20 XRP to activate a ripple wallet).