As others have pointed out here, Bloomberg has no intention of being elected. What he wants is to be able to use his status as a candidate to damage President Trump and Republicans in general.
I view the Bloomberg candidacy as a gift.
He has the potential to heavily damage the Democratic Party and force a serious leftist third party to organize to replace them.
I foresee a Bloomberg Derangement Syndrome that will be almost the equal of Trump Derangement Syndrome.
Time will tell.....