Fiat is flawed, sure. But the way things are right now, Bitcoin is a gamble, not some magic fix.
So, pick your poison.
Bitcoin isn’t always the solution to fight inflation because of its volatility, but one can diversify investments to grow wealth or even start a business. The worst thing to do is to just save money, since it will always be subject to inflation.
Bitcoin is not a way to fight inflation, but it's better than holding money in your bank account. To some degree, it's resistant to inflation, but not completely, since you can hold and get a price increase which can cover up the drop in value of local currency and purchasing power.
Starting up a business sometimes is also the best, but there are cases where the economy of a country can cripple that business and a new person to that business. Every option poses a risk; you just have to pick the one you can handle.