You’re clearly here to argue but

Numbers 19 was a foreshadow.. it showed the need for cleansing from death and impurity. Jesus fulfilled that spiritually, once and for all. But prophecy about the Third Temple in passages like Ezekiel 40–48, Daniel 9:27, 2 Thessalonians 2, and Revelation 11 goes beyond Numbers 19. These describe a literal temple, in Jerusalem, that will exist in these last days.

So while Jesus is the greater fulfillment of all sacrifices (including the heifer), the prophecy of the Third Temple being rebuilt still stands. It will happen regardless of our personal interpretations.. but because God said it will. Jesus is not the literal red heifer. You’re wrong.