Agree really strongly with this, as someone who's involved in a lot of hiring (I run a good part of the operations side for my work - so pretty much from entry level folks all the way up through VP-level). My experience is limited to legal and tech in California, so take all this with a grain of salt.
You're going to carry a larger pay expectation, and with the economic shift towards automation especially on the backend, employers are going to be looking for more skills that tend towards force multiplication rather than 1:1 (mainly tech skills/ability). If you feel like you have those, stop reading and aggressively start looking. Those kinds of skills coupled with your experience in one specific industry is super rare. You'd actually be a diamond in that kind of scenario - hand your resume into recruiters and watch people begin to fight over you.
Otherwise, there are things out there, but agree with the above that it's at risk. Now that's shitty. It's unfair. In some cases it may be illegal (and very hard to prove). That's all true. But it also is the reality. So I'd take the guaranteed income in. How does it work in terms of hours? Two things here: a) what are the posted working hours?; b) what are the "real" working hours (i.e. the time you're still thinking about work or work is de facto preventing you from other activities?). Warehouse feels like it'd generally be less than the ops role you had. If you're getting time back, use that to put into a search in the area. Leverage online resources and recruiters like plenty of folks above have suggested.
You can also take the severance like some folks are suggesting. On one hand, that gives you way more time to dedicate to the search up front. On the other hand, the problem may not be how many hours you can put into the search, but when the right opening comes up. I'm guessing you're not very mobile from the family situation you described, so you're probably tied to the immediate area. That cuts in favor of a patient approach, which is why I'd go with the warehouse job. You can still draw income, spend plenty of time on a job search that will likely "cap" out the offerings in your area at any given time, and you're not under a 29 week time limit to figure out cash flow or feel pressured to take a job that's even worse.
I'm sorry this is happening to you man. I see a lot of people above blaming singular factors, and I get how that's tempting and easy, but it's a little more complex than that. Politicians play a role, but monetary policy set by non-partisan, appointed officials may actually impact your bottom line more. You may blame the business practices of one company, but they may be squeezed in their industry from more cut-throat companies or companies who're simply beating them, and they're taking these measures to stay alive. Ultimately that doesn't matter. You're here, and it's all about what you do next.
If you want help with resume review, happy to get you my personal email and I can give feedback. I've seen a ton of these with my role: good, bad and ugly. Hang in.