Everybody is entitled to their opinion.
The German word for perception is ‘Wahrnehmung’ – which literally translates to ‘truth taking’. Our experience of the world – what we see, touch, smell and feel – is the result of what our sense organs perceive. All of reality is perception. Therefore, reality is subjective.
Disagreement happens when two realities clash. Since reality is subjective, disagreements are inevitable.
‘You have the right to feel that way’ is a constructive means to begin any disagreement.