According to the Center for Immigration Studies, 1.45 million illegal immigrants arrived in the US during 2017: that averages out to more than 2000 a day. To evaluate the job Trump did (or any administration), we need to listen less to their claims and look more at the data.
And, you know, immigration did slow at the height of Covid, since the Trump administration muffed its management of the epidemic, making this an unsafe place to live and a hard place to work for those years. But we rebounded under Biden, and people from all over the world are eager to live here again (silver lining!).