I am speechless after reading your post. It is full of misleading statements, leading me yet again to ask you whether you do it deliberately or are just badly informed.
Please show one quote from a democrat (senator, member of congress, governor etc) that says only "abolish ICE" and not "abolish ICE and replace it with something else". Even ICE officials are asking to have it abolished/re-organized. Further show me one quote where a democrat says "we want open borders" or "higher taxes". I have not read or found any of those quotes. These are all items Mr. T has been repeating again and again until his base actually believes it.
Separating the kids was not a major f-up as you put it, it was carefully and heinously planned to the last detail, that is what actually makes it so shameful for a country like the US:
- Mr. T's administration tested the policy in a pilot last year
- To show pictures of teen boys only was specifically planned so it could be argued that they will be the next MS13 member. Has more impact on the people's opinion
- They made no plan whatsoever to reunite the kids with the parents
- Contacting the child is purposely made difficult and complex
- It was just as carefully planned to spread the kids all over the country as far as possible away from the parent (according to DHS they separated just over 2,000 kids along the 2,000+ mile border, they can't house that relatively small number close to their parents? Amazing, isn't it!

)
- CBP agents are standing right at the border line to Mexico and turning people away at points of entry, driving them into the hands of "coyotes" and leaving them little choice but to try to cross in between
- list not complete
All of the above points to an exact plan and not a coincidental f-up. Of course Mr. T was trying to blame the Democrats for the mess, for something he personally signed.
According to Mr. T, he is the deporter-in-chief, he does the job so much better than Obama. But yes, Obama deported more illegal immigrants than any other president before him, which is of course according to the law, nobody questions that. However, seeing that it was not the best way to use the resources, he changed the policy in 2014 and focused on those who committed crimes etc. Plus he gave immigration courts and ICE latitude to make the decision whether to deport based on whether the immigrant was in the country for a long time, they had family, contributed to the community etc.
Mr. T on the other hand signed an EO just days after his inauguration where they abolished that policy and now everyone will be arrested and deported.
Hence, not really comparable between Obama and Mr. T.