You do not have to name your child after anyone. You are under no obligation, to anyone, to name your child with a name that they want.
If you are being pressured by a parent, grandparent or other relative to name after someone, there is one and only one response. Thank you for the suggestion. That’s it. After that, its a decision you make with your spouse. You had the kid without anyones help (except of course hashem) and you’ll name it without their help (of course, you’ll need siyata dishmaya).