Couldn’t you say the same thing for shares? You bought some shares for 5K, you sold them for 10K and now if you want to buy them again you have to pay 10K. Does this mean you didn’t realize any profit on your 5K investment?
No because the shares (in theory) have value behind them. If they went up overnight, it was because the value of the company changed not because the purchasing power of money changed. If they went up from 5K to 10K from 1996 until now, yes you could say it was inflation. But you also wouldn't pay any tax because we don't have a CGT.
But hey we can be generous and say you get to sell one house without paying CGT in your lifetime. Would that placate the masses?
I... don't know. Maybe it would?
Here's another question though. That old lady/man everyone knows of that owns dozens or hundreds of houses, do you think they ever sold any? They can still accumulate wealth without paying tax by simply hoarding it like a dragon.