No is not the problem. No without reasoning is.
Saying no with a reason is different from saying no as a gate. Context is what keeps relationships intact and roadmaps intentional.
When you give context, you are showing that you are driving strategy, not just reacting to asks. You also reduce the chance that the request gets escalated without your reasoning attached.
Product is not about approving or rejecting stakeholder ideas. It is about prioritizing relationships, maintaining focus, and following through. Context turns a no into alignment.