What would our lifespans be if we were not an ape and humanoid Hybrid? 5000 to 10,000 years or more

My thought is that through genetic engineering humans will again reach 5000 to 10,000 year lifespans or even longer if we wish to.

Something about when we genetically engineered apes into the mix for immunity it dropped our lifespans down to what they presently are. From a galactic point of view a 100 year old humanoid is still a child from their point of view. So, for galactic humanoids taking 30 to 70 year old humans of earth seriously is a very very hard thing culturally for them. Because at age 100 for a Galactic human they are still exploring the galaxy and having kids and doing all that even at age 100. But, by 200 to 300 years of age they become more serious about things and settle down more after that and help create a better civilization for all the humanoids on whatever planet or planets or dimensions they are then living on.