https://www.businessinsider.com/us-himars-completely-ineffective-against-russian-jamming-report-2024-5
Jamming is a very inexpensive tactic as the software is relatively cheap and it can take out munitions worth tens of thousands of dollars, Defense One reported.
These already exist https://en.m.wikipedia.org/wiki/Wire-guided_missile
Yes, but only for short range stuff like atgms, I'm imagining a himars with 300km of wire spooled up to avoid nefarious Russian jamming