Izzy is just as good of a striker as Alex is though.
The facts don't prove out what you say, on any level. Let's take a look at THE FACTS:
Fact #1: Alex Pereira
became Glory Kickboxing Middleweight Champ.
Fact #2: Israel Adesanya
failed to become a Glory Kickboxing Middleweight Champ.
Fact #3: Alex
became Glory Kickboxing Light Heavyweight Champ.
Fact #4: Israel
didn't even compete here.
Fact #5: Pereira was Glory's
only simultaneous Double Champ.
Fact #6: Adesanya
couldn't become Champ in Glory,
at all.
Fact #7: Izzy
lost his UFC MW Champion status
to Alex.
Fact #8: Izzy
regained his UFC MW Champion status, by beating Alex, the only foothold Izzy has (Izzy is 1-1 UFC, 0-2 Glory, and 1-3 Overall against Alex).
Fact #9: Pereira
succeeded in becoming UFC LHW Champ, also
beating Błachowicz, the guy Izzy loss to.
Fact #10: Adesanya
failed to become UFC LHW Champ,
losing to Bill Błachowicz, whom Pereira beat.
In what effing universe does this make Izzy "as good" as Alex???
Israel Adesanya is not in the same level as Alex Pereira is a striker, in any discipline, all things reasonably considered.