"CO2 in the atmosphere of Venus is 2200 times more abundant than in our atmosphere.
Even Mars has about FOUR - FIVE times as much CO2 in its atmosphere than our atmosphere has."

At first glance, I doubt these numbers. It seems Venus has more and Mars has less.

Let's see, if Earth's atmosphere was 100% CO2 that would mean that there was 2631.579 times more CO2 [if global atmosphere has 380 ppm CO2- if you times 380 times 2631.579 you get close to 1 million].
Now, Venus has about 96% of it's atmosphere being CO2 and it's a bit smaller planet, but instead 1 atm of pressure, Venus has about 92 atm of pressure. One way to look at this is that Venus has lower gravity: 8.87 m/sec^2 [as compared to Earth's 9.78 m/sec^2] yet it's atmosphere weighs 92 times more than Earth's. I would guess that Venus would be closer to 10,000 times more abundant than compared to 2200 times more [though perhaps a better guess would it's closer to 22,000 times than 10,000 times].

And I once upon time, roughly calculated the comparison of Earth's CO2 and Mars' and think it close to being the same- it might be twice as much, but I don't believe it is 4 or 5 times as much.