Science itself does not favor the multi-verse theory, which is a philosophical attempt to explain the impossibility of existence as just a matter of numbers. It is without evidence and assumes an unending number of separate infinities. As a theory, it stands unequaled in its inherent presumption.
Why do so many popular scientists promote it?
We live in a materialistic culture that eschews priceless human values such as trust, empathy, humility, etc.
Meaning is limited.
But without the multi-verse, the complex and exacting requirements for existence to occur seems contrived and suggests that the universe is intended. This would allow for meaning and purpose, unless the purpose is obsessed. Maybe meaning then. Meaning is good.
Unless you’re a materialist. Meaning sort of gums up the works.