Maybe. But Construction sites seem very male, very straight and very white, which isn’t representative of society. Why is this? What barriers are in place which are stopping non-whites and females getting into this industry? You say you struggle to recruit, it’s no wonder when you’re missing out on a huge swath of society.
Everyone struggles to recruit. We have adverts out constantly but most people just aren't interested in working hard for money anymore. I would agree construction sites are 'very male', I couldn't begin to know how you assume they are 'very straight' and as for being 'very white', I think you're way off the mark there.