Actually, it’s not at all true.
The more we find out about our place here and the conditions necessary for life,
the more it looks like the Earth is unique.
Even given the number of stars that we conjecture exist, the odds are still greater against even ONE earth existing.
Agreed. And apart from being the only planet which can likely sustain life, earth is remarkably positioned for the benifit of intelligent life in terms of cosmological study and other intellectual pursuits. The evidence is overwhelming that life on earth was not just a mere chance happening. See the book: "The Privileged Planet"