Blackrock? Look it's way simpler than that. Interest rates aren't going up, and will not be going up appreciably in 2023 or any other year, because we simply can not afford to pay higher interest on the debt.
Governments must increase their deficits so that the private sector can save more.
A lot of countries just export the responsibility to take on debt to other countries. Germany refuses to take on debt and expects the rest of the Eurozone and the US to go into debt so it can pretend to be financially responsible.
As long as the private sector has a preference to increase its net savings, interest rates will be at 0%. If it suddenly decides to spend all that money (to call this a good thing is an understatement) the resulting inflation would make the raise in interest rates irrelevant.
Also, I'm not sure how Germany is forcing anything on anyone here. Care to explain?