they have pain rezeptors they have a basic neural net.

To assume a plant would not suffer is a little outdated.

Even 20 Yeats ago it was already known that plants do feel pain.

I said: they suffer if you hurt them. Not more not less.

"Not more not less"? This is the definition of suffering:

• Experiencing pain; characterized by suffering.
• The condition of someone who suffers; a state of pain or distress.

as you can, maybe… hopefully… understand, all of those things you wrote above implies sentience. Here, this is from a miracle called wikipedia ☞

Sentience is the ability to experience feelings and sensations. Some theorists define sentience exclusively as the capacity for valenced (positive or negative) mental experiences, such as pain and pleasure.

this too is from wikipedia ☞

While plants, as living beings, can perceive and communicate physical stimuli and damage, they do not feel pain simply because of the lack of any pain receptors, nerves, or a brain, and, by extension, a lack of consciousness. Many plants are known to perceive and respond to mechanical stimuli at a cellular level, and some plants such as the venus flytrap or touch-me-not, are known for their "obvious sensory abilities". Nevertheless, no member of the plant kingdom feels pain, not withstanding its abilitiy to respond to sunlight, gravity, wind, and any external stimuli such as insect bites since they lack any nervous system. The primary reason for this is that, unlike the members of the animal kingdom whose evolutionary successes and failures are shaped by suffering, the evolution of plants is simply shaped by life and death.