And you call yourself a critical thinker, that is quite interesting… …But, I can say, that first link is not too bad, it says:
“The earliest evidence for life… …that might have been… …that may hold… …scientists have claimed to see… …that might be… …it's hard to prove… … It's also hard to prove… …may measure the age of the magma that formed the rocks rather than the rocks themselves, an issue that has also dogged claims of the Earth's oldest rocks…”
Good thing about that is, it is quite honest sounding. It really sounds that the person who wrote it, may be speaking real science, not the cult like "science" that too often seems to prevail.
I have no problem with true findings. For example if they have found something in the rock, it is interesting. But, to believe it somehow proves what was the first life on earth is so far fetched that even the sun seems close.