What the chart shows
Bitcoin is still a small part of the listed asset universe
At the latest values shown here, Bitcoin represents about 0.13% of the combined listed estimate. Its rectangle is intentionally kept proportional, even when that makes it look like a narrow strip next to global real estate or debt.
Market capitalization is not the same as cash invested. It is the latest price multiplied by the relevant supply or stock. That makes this a scale comparison, not a measure of how much money could be withdrawn from every market at once.
For more Bitcoin market context, compare this snapshot with the Bitcoin 4-year cycle chart and the Bitcoin halving schedule.