The presence of an allergy indicates a specific sensitivity and vulnerability of the body. There is no need to talk about strength and weakness here, since even a heavyweight athlete or, in all other respects, a physically strong person can suffer from a certain type of allergy. Every ailment has a downside. It may turn out that a patient suffering from allergic rhinitis is better at distinguishing odors and subtle color shades than most "healthy" people, in this sense, his rhinitis will embody both his strength and weakness compared to other people
I heard a tale that if a terrible disease (some new virus) appears on the planet, then allergy sufferers will be able to cope with this virus easier than everyone else. I don’t know where it came from!))
Of course weaker. People with allergies are often unable to leave their homes or work productively under standard conditions. This often makes them less competitive and vulnerable. It is difficult for healthy people to understand how uncomfortable it is to be allergic.
There are still a lot of white spots in allergy for science. According to one version, allergy is an inadequate response of the immune system to harmless stimuli. This can be expressed, among other things, in an overly strong response. But this does not mean that the body is stronger, it means that it reacts more strongly. For example, if a mosquito bites you, you can kill it with a light blow of your palm, or swing a hammer at it with all your might.
If we understand by "strength" the vitality of a person, then the one who has no allergies is stronger. Because the organism that adapts better to the environment is more viable.