Separate cores aside, there are still more individual customization points within each individual core than there is in the entirety of Halo 5, period.
Customization points
Halo 5 Customization Points:
- Helmet (127)
- Armor (127)
- Gender (2)
- Primary Color (60)
- Secondary Color (60)
- Visor Color (63)
- Emblem 297
- Emblem Primary Color (60)
- Emblem Secondary Color (60)
- Assassination (I’ll be generous and include this just to make a point) (28)
- Service Tag *
(2.1902690646144e+17‬ total customization permutations, hell it would’ve had far less if 343 didn’t pad the color palettes halfway through the game’s lifespan)
Halo Infinite Customization Points:
- Core (3)
- Armor Kit (5 MKV) (9 MKVI)
- Armor Coating (23 MKV) ( 47 MKVII) (14 Yoroi)
- Helmet (11 MKV) (9 MKVII) (4 Yoroi)
- Helmet Attachment (14 MKV) (15 MKVII) (5 Yoroi)
- Visor Color (7 MKV) (16 MKVII) (8 Yoroi)
- Chestplate (12 MKV) (11 MKVII) (2 Yoroi)
- Left Arm (10 MKV) (13 MK VII) (5 Yoroi)
- Right Arm (10 MKV) (13 MK VII) (5 Yoroi)
- Handplate (2 MKV)
- Wrist (5 MKV) (2 MKVII)
- Thigh Accessory (3 MKV) (6 MKVII) (4 Yoroi)
- Knee Guard (4 MKV) (4 MKVII) (3 Yoroi)
- Emblem (69)
- Emblem Color Scheme *
- Armor Effect (3)
- Effect Set (3)
- Body Type (3)
- Left Arm Prosthesis (4)
- Right Arm Prosthesis (4)
- Left Leg Prosthesis (2)
- Right Leg Prosthesis (2)
- AI Model (6)
- AI Color (9)
- Service Tag *
- Voice (8)
- Nameplate (38)
- Backdrop (16)
- Palette Color *
- Spartan Stance (28)
(1.565370984765063e+22‬ customization permutations on just the MKV core alone, that’s not factoring the other two cores in)
Halo Infinite has three times more customization points than Halo 5 flat out.
(Points vary in terms of options, no real accurate or generalized way of providing a quantified result*)
I didn’t repeat anything, I simply used both single colors you could choose from as an example of the few points of customization you can choose from in Halo 5. You provided the example, I used it against your argument 
I never suggested that Halo Infinite was somehow not restrictive, I suggested that it offered more points of personalization than Halo 5 had at the end of its life. Both games are incredibly restrictive in their own respective ways. Halo Infinite in its restriction on acquisition of parts, color scheme locks and core locks, and Halo 5 in its incredibly limited scope of personalization.
Being able to choose two colors in Halo 5 doesn’t make Halo 5 any less restrictive than Halo Infinite where you can’t, but have access to 29 other ways of personalizing your Spartan where you only have 8 more in Halo 5.
You’re talking about the player’s ability to choose 2 colors as somehow being justification for only allowing the player to choose two pieces of armor in Halo 5, and saying that it somehow negates 29 other points of customization in Halo Infinite.
Halo 4 had a customization system that nearly mirrors Reach’s, more customization points than Halo 5, and has more total possible customization permutations than Halo 5 did, and it’s a 343i game too…
So you are playing the revisionist history game lol.
It doesn’t negate anything 
My point was very simply suggesting that Halo 5 was incredibly limited in customization scope compared to Halo Infinite, which it is.