First, I'm pretty sure it's not the wood... loll
OK. Let me make sure I understand you correctly. You owned a limited edition ($800 back in 2002) American Precision Bass Junior (made of Alder). Recently you sold it to buy a stock Indonesian made 2022 MINI (made of Poplar) that sells for less than $200 in 2022. Now, when comparing them, your not happy with the sound of the MINI compared with your vintage Junior? That's kind of like comparing a Lexus 450H to a stock Corolla Cross, isn't it? If I remember correctly, those Precision Bass Juniors were partially hand assembled in either Corona, or Japan, and had full-on American grade hardware, wiring, and electronics. Your stock MINI was mass produced in Indonesia with import electronics, pickups, and hardware. Just dropping a Quarter Pounder in it, and not upgrading the electronics or the hardware, isn't going to take advantage of your pickup.
How about comparing it to a "lightly" modded Mini P, like mine. It has Grover 20-1 tuners, a hand cut Tusq nut, I dressed and leveled the frets, I hand rolled the fingerboard, I added a Seymour Quarter Pounder, I also added (a side of) Bourns pots, an orange drop cap, Gavitt wires, and a Switchcraft jack (to go with my Quarter Pounder loll). Next I added a Hipshot tree and a Kickass bridge. Then I professionally dialed it in. (and I spent 10 years working for Fender, Musicman and G&L in my youth) When needed (I'm primarily a guitar player) I've been using mine in the studio since January instead of my Vintage 1965 Precision, because it's safe and easy to fly with (and I'm not going to risk my 65 while traveling during a stupid Pandemic!) I could have easily rented a Precision when I got there (but my MINI sounded fine in the mix). Who knew? I'm pretty sure my MINI might compete a little better with the memory of your Junior.
Seriously, comparing a stock $200 instrument vs an American grade instrument worth $1k on the street (right now 20 years later) is interesting. I'm not trying to be rude, but that's not really a surprise, is it?