Yep, those are garbage.
Inspect the speed gear closely. The clutching teeth should have a sharp edge all the way down to the tip. If it's rounded, and it will be, replace the speed gear. Inspect the teeth on the slider, again if the teeth are rounded at the tip or crown then replace the slider.
I suspect you will need a synchro assembly that includes the hub, keys, springs, slider, and brass for 1st and 2nd. Additionally you will need a 2nd gear speed gear, minimum.
Another option is to install a slick shift conversion kit from Passon Performance, and then modify either a new 2nd gear speed gear or the old gear by removing every other tooth to work with the modified slider.
https://www.passonperformance.com/categories/transmission-parts/product/278-slick-shift-kitTypically only 2nd, 3rd, and 4th are modified.
Liberty gears can make those changes for you or set you up with what they call a "Pro Shift Modification" to the speed gears and sliders. Or go straight to a Face Plate.
https://libertysgears.com/services/face-platepro-shift-gear-modifications/Regardless, you're spending money to fix it correctly.
