Obama wasn’t a piker in deportations, but the current system itself is self limiting in terms of space and manpower.
The only way he can meet his stated goals is to spend a shit ton more money to get the ICE officers and the detention space he will need. That is gonna cost a lot especially if he plans to continue and even expand his tax cuts. Sooo, he either comes nowhere near mass deportations or Congress is gonna bust the budget to give the resources needed to do it. We shall see. I do know that ICE is literally begging for detention space in these parts and we aren’t that far from Moshannon Valley.