Monday was not even close to similar to what other MCU movies did in May. Most of those dropped 70-75% from the first Sunday. That would put Homecoming between $7.6-8.7M. But it's $12.2M, which is obviously much higher.
Just saying "I think this will happen", when there's clear signs everywhere that it won't isn't going to convince anyone. You're going to need math and valid comparisons to predict box office, not opinions.
It has a much better release date than TASM2, TASM2 faced tougher competition.
Godzilla made $93M in its 3rd weekend, followed by X-Men: DoFP the weekend after, which made $90M. The weekend after that Maleficent and Million Ways to Die in the West made over $85M combined.
Homecoming won't face competition that strong, or with that much audience overlap. The 2nd weekend is the only one where Homecoming will face tougher competition than TASM2 did.