She's calling Obama good, the president who ordered multiple drone strikes and as result killed many civilians around the world. I don't even think Trump has killed as many people if we compare the statistics.
You have a point about Obama in some respects. With that said, The Jewish lobby didn't like him and the prime minster of Israel, Netanyahu, openly avoided and disrespected Obama when he was in New York few times. Despite Obama's many shortcomings, he was good to African Americans and minorities, tried to introduce some positive changes. He also provided healthcare to many poor Americans. He invited Muslims to the white house during Ramadan like his predecessors and continued to have good relationship with Muslim Americans unlike Trump.
Whilst trump didn't kill as many Muslims, he introduced a ban on Muslims coming to America and openly flouted the idea of locking them up if necessary en masse. He made clear he prefers the immigration of Norwegians over Africans from Africa. The list of open racial and religious hostilities coming from Trump is too many to count.