TBH Trump was dumb to back off from the DACA deal. It would have helped DACA recipients not have to live with the fear of getting deported and would have gave lots of money towards the wall.
Trump has offered things Democrats want though. He is willing to increase things like technology in the southern border which democrats have been asking for. He has alo said that it does not even have to be a whole wall but can also be a large fence which Democrats have wanted for awhile now.
Trump has a trust problem. The Dems do not trust him and he hasn't shone he can be trusted. Right now, the Dems are saying we will do nothing about wall as part of opening the government. They do not want it included in the deal period. They have stated they want this to be something done properly and a comprehensive reform not some one off BS that will be on the next agenda come February. I cannot really blame them because if they back down now they will continue to back down every time Trump pulls this stunt again. Actually the last talks he just had with the Dems he just threw another demand down saying fund his wall in 30 days. Of course the Dems said no and he walked out of the meeting. If you believe that is negotiating where you throw out demands but give nothing in return, then Trump is doing great.
The thing is, Trump really isn't looking to negotiate and he really isn't concerned about the shutdown since it stalls the current investigations (federal) going on. Hell, Manafort lawyers revealed that he was passing data to a Russian agent during the campaign including after he was let go.