Why are you even comparing bitcoin the marketcap of real estate? Definitely not saying that it's impossible for BTC to overtake it, but it's a nonsense comparison. Like comparing the marketcap of copper to Apple stock.
I guess every big empires today and big businesses starts from somewhere too? The point makes sense to me, crypto market cap can worth more in trillions of dollars in future.
That's not the point. Having personal opinions on what bitcoin's marketcap should be isn't bad, but having very unrelated mcap comparisons is dumb. Bitcoin is a currency/SoV, while real estate is a physical asset that people buy/rent to live in or to do business operations with or other stuff. Very unrelated.