I'm not. Im genuinely concerned that you really think you have a point. They don't usually have cameras in space in position for launches considering the extra rockets, fuel, etc required to make something like that happen. But, there is video of rockets from cameras on the craft themselves, in space, still burning fuel in spite of the lack of oxygen in open space because the explosion happens where the fuel and oxygen stored in tanks within the rocket meet and then propel the rocket forward by expulsion. By your logic, no moon landing ever returned from the moon because they couldn't make a fire.

If you've ever driven a car, you've used the same process. It's called internal combustion.