You are by far the most dogmatic person on this comment section. Are you actually saying there's no genetic element to dig behavior? Not only does that go against scientific consensus, I'm not even aware of any debate or controversy on the subject at all. There's certainly a debate around which one is the dominant factor, but afaik it's pretty fringe to claim there's no genetic factor. I assume any amount of citations and proof won't convince you but there you go:

1. Serpell, James, ed. The domestic dog. Cambridge University Press, 2017. (start on page 70, available on Google books, too long to quote)

And

2. "We found that a large proportion of behavioural variance across breeds (among-breed heritability) is attributable to genetic factors (figure 1a). The mean among-breed heritability was 0.51 ± 0.12 (s.d.) across all 14 traits (range: h2 = 0.27–0.77), and significantly higher than the null expectation in all cases (permutation tests, p < 0.001). These estimates are also significantly higher than those in previous studies assessing heritability of the same traits in large within-breed samples (mean difference = 0.37, 95% CI = 0.44–0.30; t13 = −12.25, p < 0.001; [44], but see [45]). Incorporating among-breed variance thus yields h2 estimates that are on average, five times higher (range = 1.3–25.5 times higher) than traditional within-breed estimates, which could be due to limited genetic and phenotypic variation within breeds." (MacLean, Evan L et al. “Highly heritable and functionally relevant breed differences in dog behaviour.” Proceedings. Biological sciences vol. 286,1912 (2019): 20190716. doi:10.1098)