that is the image that remainers love to promote,
What a strange comment to make about a statistic. How can you "love to promote" a fact? It exists and, in this instance, careful, accurate research has shown that:
... voting Leave is associated with older age, white ethnicity, low educational attainment, infrequent use of smartphones and the internet, receiving benefits, adverse health and low life satisfaction.
You may be an exception, but overall that sums up the evidence. Perhaps you have done your own research and would sum this group of voters up differently? It doesn't make people who fall under these descriptors bad people, just people more likely to vote leave.