Democratic immigration policies always prioritize family based and undocumented immigration. They have clear electoral benefits from this (see AZ and TX). Reforming H1B and the high skilled immigration system is only an afterthought.
Republican policies have at least put forward some kind of points-based system. They however want to reduce family based immigration which is an absolute no-go for Democrats.
DACA kids go to school. They graduate from schools here. They serve in military. They pay taxes when they join the workforce.
The majority of Indians/Asians also vote for Democratic candidates. 80+% of Asians voted for Clinton in 2016.
Except they aren't. There is a clear 'caste' system when it comes to the immigration Democrats care about. Their primary focus is on immigration across the Mexican border (a lot of which is often technically or borderline 'illegal') which they want to make as legitimized as possible as the Hispanic community is a massive votebank for them. So we have all this noise about DACA and the like.
On the other hand, the overwhelming majority of legal H1B pool is largely an afterthought for them because the Indian and Chinese community in America is not that politically assertive, plus the H1B types can't vote anyway, and are mostly concentrated in places like California / Washington so their friends etc would anyway vote Democrat so who cares.
By and large Democrats prioritize the most disadvantaged first, and that's poor immigrants, many of whom happen to be coming across from Mexico.
How about prioritizing the most disadvantaged _US citizens_ first instead of kicking the stool from underneath them by importing cheap labor?
I'm less worried about Mexicans spilling over into California than I am about jobs being off shored to the far east. Clinton lost in 2016 because she and Bill Clinton are poster childs for NAFTA and letting China into the world trade organization.
No, but the mega-corps that hire a lot of them are. Very much. And usually lean more towards supporting Democratic politicians to ensure their labor pipeline is kept in place.
Additionally, the focus on DACA and Hispanic immigration may be because of size: Indian and Chinese immigrants aren’t even 5% of the USA out together, while immigrants just from Mexico are a whopping 11% of the USA.
You literally have 1 side that demonizes a situation, and the other side doing pretty much all the can within the legal powers they have to improve the situation, but “both sides don’t really care”.