The number of people attending the inauguration is not a "subjective opinion," nor are "thousands" of Muslims in New Jersey cheering 9-11. Trump's math skills suck or he says whatever bullshit fits his argument regardless if it's accurate.
In your opinion, how many people attended president Trump's inauguration? I know there certainly was a lot of people there despite the violent terrorist attacks, Clinton supporters blocking access to the mall and the rain. So what is your estimate?
Also, how many Muslims do you think were jumping for joy on 9/11?